button{
  outline: none;
  border: none;
}

div#container{
	width: 600px;
	height: 720px;
	margin: 100px auto;
	background-color: #000;
}

div#container div.show-box{
  width: 100%;
  height: 60px;
  background-color: limegreen;
  color: #fff;
  font-size: 25px;
}

div#container div.show-box div{
  float: left;
  width: 50%;
  height: 100%;
  line-height: 60px;
  text-align: center;
}

div#container div.button-box{
  width: 100%;
  height: 60px;
  color: #fff;
}

div#container div.button-box div{
  float: left;
  width: 33.33%;
  height: 55px;
}

div#container div.button-box div button{
  width: 100%;
  height: 100%;
  background-color: limegreen;
  font-size: 25px;
  color: #fff;
  cursor: pointer;
}

div#container div.button-box div button:hover{
  background-color: lime;
}

div#container div.button-box div button:disabled{
  background-color: lightgreen;
}